nfp: add support CHACHA20-POLY1305 offload for ipsec

Add the configuration of CHACHA20-POLY1305 to the driver and send the
message to hardware so that the NIC supports the algorithm.

Signed-off-by: Shihong Wang <shihong.wang@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Link: https://lore.kernel.org/r/20231009080946.7655-2-louis.peens@corigine.com


Signed-off-by: Paolo Abeni <pabeni@redhat.com>